The upheaval zone in upper mantle is the primary factor controlling the distribution of gulch-gold mines and lodegold mines.
上地幔隆起区是控制砂金矿和岩金矿面式分布的主要因素。
2
The temporal analysis shows that Chinese gold placers were formed in the Quaternary whereas lodegold reserves are mainly of Jurassic-Cretaceous age, forming 64.
中国砂金矿主要形成在第四纪，而原生金矿则主要形成在侏罗—白垩纪（占原生金总储量64。
3
The gold in gulch-gold mines locating in northern region of Heilongjiang Province mainly originates from the gold-containing structure and lodegold mines enriched by crust-mantle action.